SOFIA, Feb. 27 (Xinhuanet) -- A suspected blast
occurred on board shortly before the crashed Macedonian presidential plane went
lost from radar, a local Bulgarian radio reported Thursday.

The report quoted Sasho Yordanovski, editor-in-chief of the Macedonian magazine Forum, as saying that there have
been two versions of the cause of the tragic incident, which claimed the lives
of the Macedonian president and other eight people.

One version attributed the accident to bad weather
conditions in the area early Thursday and the other suggested a technical
failure of the 25-year-old aircraft.

Both Bosnian and Macedonian police have reached the
site of theplane crash in the Bosnian mountains, and are working to identify
cause.

Trajkovski, 47, died when his plane crashed in the
mountainous terrain in the south of Bosnia and Herzegovina in thick fog, along
with eight others aboard.

Besides the president, the victims include his
councilors DimkaIlkova-Boshkovic, Risto Blazhevski and Anita Lozanovska, foreign
affairs official Mile Krastevski, two bodyguards Atse Bozhinovski and Borsi
Velinov, and two pilots Marko Markovski and Branko Ivanovski.

The Macedonian president had been on his way to a
conference in the Bosnian town of Mostar.